泡沫铅对VRLA电池性能的影响

以泡沫铜为基体,采用电沉积铅制备泡沫铅板栅,并将其作为阎控密封铅酸电池的负极集流体,组装成负极限容的实验电池.对实验电池进行了充放电性能测试,结果表明:在20h、10 h、5 h和2 h率放电情况下,泡沫铅电池与铸造板栅电池相比,质量比容量分别提高了23%、36%、35%和44%,活性物质利用率分别提高了5.03%、9.86%、8.79%和9.60%.

Effects of lead foam on the performance of VRLA battery

Based on copper foam substrate, lead foam grid was prepared through electroplating lead and used as negative current collector of valve-regulated lead acid (VRLA) batteries to assemble the test battery, whose capacity was determined by negative capacity.Charge-discharge performance tests were taken to the experimental batteries. The results showed that at 20 h, 10 h, 5 h and 2 h rate discharge, the mass specific capacity of lead foam battery increased 23%, 36%, 35% and 44% than that of casting grid battery, the utilization efficiency of active material improved 5.03%, 9.86%, 8.79% and 9.60% than that of casting grid battery.